/*
 * Copyright (c) 2020 Uber Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.uber.rss.metrics;

import com.uber.m3.tally.Counter;
import com.uber.m3.tally.Scope;

import java.util.HashMap;
import java.util.Map;

public class ApplicationMetrics extends MetricGroup<ApplicationMetricsKey> {

    private final Counter numApplications;
    
    public ApplicationMetrics(ApplicationMetricsKey key) {
        super(key);

        this.numApplications = scope.counter("numApplications");
    }

    public Counter getNumApplications() {
        return numApplications;
    }

    @Override
    protected Scope createScope(ApplicationMetricsKey key) {
        Map<String, String> tags = new HashMap<>();
        tags.put(M3Stats.TAG_NAME_USER, key.getUser());
        tags.put(M3Stats.TAG_NAME_ATTEMPT_ID, key.getAttemptId());
        return M3Stats.createSubScope(tags);
    }
}
